Added a very complicated AsyncIterableReader class.

The class was already implemented in
"https://deno.land/std@0.144.0/streams/conversion.ts".  So, I litterally
lost 1 day of work!  I hate myself.

vendor/deno.land/std@0.188.0/bytes/equals.ts

@@ -0,0 +1,44 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// This module is browser compatible.
+
+/** Check whether binary arrays are equal to each other using 8-bit comparisons.
+ * @private
+ * @param a first array to check equality
+ * @param b second array to check equality
+ */
+function equalsNaive(a: Uint8Array, b: Uint8Array): boolean {
+  for (let i = 0; i < b.length; i++) {
+    if (a[i] !== b[i]) return false;
+  }
+  return true;
+}
+
+/** Check whether binary arrays are equal to each other using 32-bit comparisons.
+ * @private
+ * @param a first array to check equality
+ * @param b second array to check equality
+ */
+function equals32Bit(a: Uint8Array, b: Uint8Array): boolean {
+  const len = a.length;
+  const compressable = Math.floor(len / 4);
+  const compressedA = new Uint32Array(a.buffer, 0, compressable);
+  const compressedB = new Uint32Array(b.buffer, 0, compressable);
+  for (let i = compressable * 4; i < len; i++) {
+    if (a[i] !== b[i]) return false;
+  }
+  for (let i = 0; i < compressedA.length; i++) {
+    if (compressedA[i] !== compressedB[i]) return false;
+  }
+  return true;
+}
+
+/** Check whether binary arrays are equal to each other.
+ * @param a first array to check equality
+ * @param b second array to check equality
+ */
+export function equals(a: Uint8Array, b: Uint8Array): boolean {
+  if (a.length !== b.length) {
+    return false;
+  }
+  return a.length < 1000 ? equalsNaive(a, b) : equals32Bit(a, b);
+}